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8480-KAG2
Evaluation unit Type 8480 Non-contact overhead wire contact
Evaluation unit
Type KAG2 Non-contact overhead wire contact
KAG2
Description
The type 8480 evaluation unit is used
for signal evaluation for the TLC 4
non-contact overhead wire contact.
Both the isolating stage and the signal
evaluation section are incorporated in
a plastic housing.
The isolating stage includes the
power supply for the evaluation and the
DC/DC converter for the galvanically
isolated power supply of the overhead
wire contact (mains switching part).
The isolation stage also includes the
opto-couplers that transmit the signals
coming in from the overhead wire
contact galvanically isolated.
The evaluation stage evaluates
the incoming signals. Depending on
their number, the incoming signals are
stored, evaluated and output serially
as standard pulses.
Depending on the individual order,
the evaluation unit outputs one output
pulse per carbon part of the current
pickup or else only one output pulse is
passed if there are two carbon parts
at the current pickup (2 input pulses).
The user can carry out the changeover
of the input divider by actuating switch
S2.
Position 2 → 1 input pulse =
1 output pulse
Position 1 → 2 input pulses =
1 output pulse
(1 current pickup with 2 carbon
pieces)
The manufacturer can change the
duration of the standard pulse or the
division relations, e.g. 4:1, to meet the
operational requirements of the user.
Signal error monitoring is also done
in addition to the signal processing.
The signals or switching states coming
in at the 2 signal cables are continuously compared with one another. In the
event of an error, further transmission
of an output signal is blocked and
the error is displayed at the unit by
the red LED in the Clear button. A
zero-potential contact is available to
allow further reporting of the error.
The direction of action of the error
reporting contact can be reversed by
opening the housing and setting switch
S3 as appropriate.
The relay is operated on the “quiescent current principle” in position
2 3/4 R. This means that it is triggered
in normal situations and the green
LED lights up (standard configuration;
yellow LED serves as the function
display). If there is an error, the yellow
LED goes out and the red LED in the
Clear button lights up.
In addition to monitoring all 4 connecting cables to the overhead wire
contact and the associated functions,
monitoring of the operating voltage is
also possible in this default mode.
In position 1 3/4 A the relay operates on the “working current principle”, meaning that it is initiated if there
is an error, the yellow LED for the
function display of the error transmitting relay and the red LED in the Clear
button light up at the same time.
The error display remains active
until the error has been corrected and
the error has been cleared at the evaluation unit or by a remote contact.
Special versions, installation in a hosing
including wiring, on request.
Technical data
Dimensions
Housing material
Attachment
Weight
Attachment
Type of protection
Ambient temperature
Supply voltage
Current drawn
Sensor connection
Open-circuit voltage:
max. current
Signal inputs:
max. current
Input divider
Input memory
Relay outputs
Signal duration
Ordering information
Type
Part No.
KAG2
410110
Error
Switch cabinets wired to hold a maximum
of 4 evaluation units, see brochure sheet
type 8908
Ext. acknowledgement
Voltage at the terminals
Test voltage
WxHxD 150/73/113 mm
Terminal plate: Polycarbonate
Lower part: ABS
Plastic-reinforced glassfibre
approx. 1.4 kg
2 holes to be drilled as per the drilling
template, standard carrying rail as
per DIN EN 50022
Housing: IP 40; terminals: IP 10
-20°C to +70°C
terminal 31 (N/L-); terminal 32 (L/
L+)
AC 230 V → 8480 1DC 18 V - 80 V → 8480 5Special voltages on request
approx. 10 VA /5 W
resistant to short-circuits, terminal 21
(-); terminal 22 (+)
DC 24 V± 5%
approx. 200 mA
2 antivalent inputs, terminals 19/20
< 35 mA (limited)
1 input pulse = 1 output pulse
→ 8480 11 / → 8480 51
2 input pulses = 1 output pulse
→ 8480 12 / → 8480 52
max. 15 (30) signal pulses can be stored
2 changeover contacts (zero-­
potential) terminals 11 - 16
Voltage Currentcos φ
AC 250 V 4.0 A > 0.7
DC 80 V 1.0 A ohmic load
0.6 s (in the case of multiple signals,
breaks likewise 0.6 s), other timings
such as 0.5 s to special order
1 changeover contact (zero-potential) terminals 4 - 6
Voltage Currentcos φ
AC 250 V 4.0 A > 0.7
DC 80 V 1.0 A ohmic load
Can be switched between working
current and quiescent current
Remote acknowledgment (and local)
terminals 8 - 9
DC 15 V; 1k < 20 mA
4 kVeff
ESN Bahngeräte GmbH · Cochemer Straße 12–14 · 68309 Mannheim · Phone +49 62 18 33 47-00 · Fax +49 62 18 33 47-99
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Evaluation unit type KAG2
Version 21 07 16 / ESN 8480-KAG2-e
ESN Bahngeräte GmbH · Cochemer Straße 12–14 · 68309 Mannheim · Phone +49 62 18 33 47-00 · Fax +49 62 18 33 47-99
4